Posted: December 2, 2010 by Wildcat in Uncategorized

Super-Earth Exposed The planet GJ 1214b, shown here in an artist’s conception with two hypothetical moons, orbits a “red dwarf” star 40 light-years from Earth. GJ 1214b has a radius of about 2.7 times that of Earth and is about 6.5 times as massive, putting it squarely into the class of exoplanets known as super-Earths. An exoplanet is a planet that orbits a star beyond our sun. Astronomers have confirmed that this alien world has a thick atmosphere, but can’t yet determine whether the atmosphere is primarily hydrogen or a steamy soup of water vapor. (via NASA – Super-Earth Exposed

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